Journal
ELECTROCHIMICA ACTA
Volume 282, Issue -, Pages 10-15Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2018.06.015
Keywords
Perovskites solar cells; Hole transport material free; Au@SiO2 nanoparticles; Surface plasmon resonance
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Funding
- National Basic Research Program of China [2011CB933300]
- National Science Fund for Distinguished Young Scholars [50125309]
- National Natural Science Foundation of China [51272184, 91433203]
- Research of Environment-friendly Perovskite Solar Cells [2017KIE01]
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Hole transport material free (HTM-free) perovskite solar cells (PSCs) with carbon counter electrode have the advantages of low-cost, good efficiency and high stability. Here in this work, we demonstrate that incorporating Au@SiO2 core-shell NPs into TiO2 scaffold layer increases the power conversion efficiencies (PCEs) of PSCs by improving the light absorption and facilitating carrier transfer or separation through SPR effect. With the optimal concentration of 0.3 wt % Au@SiO2 incorporation, the average PCE of PSCs enhances to 13.85 +/- 0.45% from the reference samples of 12.01 +/- 0.44%, which is mainly caused by the improved short circuit current density. (C) 2018 Elsevier Ltd. All rights reserved.
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